JP7212457B2 - interdental cleaner - Google Patents

interdental cleaner Download PDF

Info

Publication number
JP7212457B2
JP7212457B2 JP2018087031A JP2018087031A JP7212457B2 JP 7212457 B2 JP7212457 B2 JP 7212457B2 JP 2018087031 A JP2018087031 A JP 2018087031A JP 2018087031 A JP2018087031 A JP 2018087031A JP 7212457 B2 JP7212457 B2 JP 7212457B2
Authority
JP
Japan
Prior art keywords
cleaning
shaft
covered
brush
interdental
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
JP2018087031A
Other languages
Japanese (ja)
Other versions
JP2019188014A (en
Inventor
侑 吉川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kobayashi Pharmaceutical Co Ltd
Original Assignee
Kobayashi Pharmaceutical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kobayashi Pharmaceutical Co Ltd filed Critical Kobayashi Pharmaceutical Co Ltd
Priority to JP2018087031A priority Critical patent/JP7212457B2/en
Priority to US17/050,525 priority patent/US11612235B2/en
Priority to PCT/JP2019/017966 priority patent/WO2019208780A1/en
Priority to EP19791669.5A priority patent/EP3785663A4/en
Publication of JP2019188014A publication Critical patent/JP2019188014A/en
Application granted granted Critical
Publication of JP7212457B2 publication Critical patent/JP7212457B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B3/00—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier
    • A46B3/04—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier by mouldable materials, e.g. metals, cellulose derivatives, plastics
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B9/00—Arrangements of the bristles in the brush body
    • A46B9/08—Supports or guides for bristles
    • A46B9/12—Non-adjustable supports
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • A46D1/02—Bristles details
    • A46D1/0207—Bristles characterised by the choice of material, e.g. metal
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C15/00—Devices for cleaning between the teeth
    • A61C15/02—Toothpicks
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B2200/00—Brushes characterized by their functions, uses or applications
    • A46B2200/10—For human or animal care
    • A46B2200/1066—Toothbrush for cleaning the teeth or dentures
    • A46B2200/108—Inter-dental toothbrush, i.e. for cleaning interdental spaces specifically

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Brushes (AREA)

Description

本発明は、歯間清掃具に関する。 The present invention relates to an interdental cleaning tool.

従来、歯間を清掃するための歯間清掃具が知られている。例えば、特許文献１には、合成樹脂からなる基材部と、エラストマーからなる軟質部と、を備える歯間清掃具が開示されている。基材部は、歯間に挿通されることが可能な形状を有する芯基材部と、指で把持されることが可能な形状を有するハンドル基材部と、を有している。軟質部は、芯基材部の外周面を被覆する被覆部と、それぞれが被覆部の外周面から外向きに突出する複数の突起部と、を有している。 Conventionally, an interdental cleaning tool for cleaning between teeth is known. For example, Patent Literature 1 discloses an interdental cleaner that includes a base portion made of synthetic resin and a soft portion made of elastomer. The base member has a core base member shaped to be inserted between teeth and a handle base member shaped to be gripped with fingers. The soft portion has a covering portion that covers the outer peripheral surface of the core base portion, and a plurality of protrusions that each protrude outward from the outer peripheral surface of the covering portion.

国際公開第２０１３／１７６２９７号WO2013/176297

特許文献１に記載されるような歯間清掃具では、当該歯間清掃具での歯間の清掃中に、エラストマーを含む材料からなる清掃部が軸部から離脱する（剥がれる）懸念がある。 In the interdental cleaning tool as described in Patent Literature 1, there is a concern that the cleaning part made of a material containing an elastomer may be detached (peeled off) from the shaft part during the interdental cleaning of the interdental cleaning tool.

本発明の目的は、清掃部の軸部からの離脱を抑制することが可能な歯間清掃具を提供することである。 SUMMARY OF THE INVENTION An object of the present invention is to provide an interdental cleaning tool capable of suppressing separation of the cleaning part from the shaft part.

前記課題を解決するために、本発明は、歯間に挿通されることが可能な形状を有する軸部を含む基部と、前記軸部の少なくとも一部を被覆するとともに歯間を清掃可能な清掃部と、を備え、前記基部は、前記軸部のうち前記清掃部によって被覆される部位である被被覆部から前記軸部と交差する方向に突出して前記清掃部を係止している突出部をさらに有しており、前記清掃部は、前記被被覆部を被覆する清掃部本体と、それぞれが前記清掃部本体の外周面から外向きに突出する形状を有する複数のブラシと、を有し、前記突出部は、前記被被覆部のうち当該被被覆部の基端部と当該基端部から前記軸部の先端部に向かって前記軸部の軸方向についての前記清掃部の長さの１０分の９離間した部位との間の領域である基端領域においてのみ前記軸部の前記軸方向に互いに離間して配列された複数の突起を含んでおり、前記複数の突起それぞれは、前記基端領域にあるブラシによって被覆されて、当該ブラシの剛性を高めている、歯間清掃具を提供する。 In order to solve the above problems, the present invention provides a base portion including a shaft portion having a shape that can be inserted between the teeth, and a cleaning device that covers at least a portion of the shaft portion and is capable of cleaning between the teeth. wherein the base protrudes in a direction intersecting with the shaft portion from a covered portion, which is a portion of the shaft portion covered by the cleaning portion, and locks the cleaning portion. wherein the cleaning unit includes a cleaning unit main body that covers the covered portion, and a plurality of brushes each having a shape that protrudes outward from the outer peripheral surface of the cleaning unit main body. , the projecting portion has a length of the cleaning portion in the axial direction of the shaft portion from the base end portion of the covered portion of the covered portion and from the base end portion toward the tip portion of the shaft portion. a plurality of projections spaced apart from each other in the axial direction of the shaft only in a proximal region that is the region between the 9/10 spaced sites, each of the plurality of projections To provide an interdental cleaner covered by a brush in the proximal region to increase the rigidity of the brush .

本歯間清掃具では、当該歯間清掃具での歯間の清掃中に清掃部に対して当該清掃部が軸部から抜ける（剥がれる）方向の外力が作用した場合であっても、突出部がその外力に対する抵抗として作用するので、清掃部の軸部からの離脱が抑制される。 In this interdental cleaning tool, even if an external force is applied to the cleaning part in a direction in which the cleaning part comes off (separates) from the shaft part during cleaning between the teeth with the interdental cleaning tool, the protruding part acts as a resistance against the external force, so that the separation of the cleaning part from the shaft part is suppressed.

また、複数のブラシのうちの被覆ブラシは、突起によって支持されるので、当該被覆ブラシの剛性がそれ以外のブラシの剛性よりも大きくなる。すなわち、基端領域に対応する位置に設けられた各ブラシの剛性が相対的に大きくなり、被被覆部のうち基端領域よりも先端側の領域に対応する位置に設けられた各ブラシの剛性が相対的に小さくなる。よって、清掃部の歯間への挿入性が確保され、かつ、被覆ブラシによる清掃性が高まる。 Moreover , since the covered brushes among the plurality of brushes are supported by the projections, the rigidity of the covered brushes is higher than that of the other brushes. That is, the rigidity of each brush provided at a position corresponding to the base end region becomes relatively large, and the rigidity of each brush provided at a position corresponding to the region on the distal side of the base end region in the covered portion. becomes relatively small. Therefore, the insertability between the teeth of the cleaning part is ensured, and the cleaning efficiency with the coated brush is enhanced.

また、複数の突起の突出寸法は、前記軸部の先端側から基端側に向かうにしたがって次第に大きくなっていることが好ましい。 Moreover, it is preferable that the projection dimensions of the plurality of protrusions gradually increase from the distal end side toward the proximal end side of the shaft portion.

このようにすれば、被被覆部の基端側に向かうにしたがって被覆ブラシの剛性が大きくなるので、当該被覆ブラシによって有効に歯間ないし歯の側面が清掃される。 In this way, since the rigidity of the coated brush increases toward the proximal end of the coated portion, the coated brush effectively cleans between the teeth or on the side surfaces of the teeth.

また、前記清掃部は、エラストマーと強化材とを含む複合材料からなることが好ましい。 Moreover, it is preferable that the cleaning part is made of a composite material including an elastomer and a reinforcing material.

このようにすれば、清掃部がエラストマーのみからなる場合に比べて各ブラシの剛性が高まるので、歯の側面が有効に清掃される。 By doing so, the rigidity of each brush is increased as compared with the case where the cleaning portion is made only of elastomer, so that the side surfaces of the teeth are effectively cleaned.

以上のように、本発明によれば、清掃部の軸部からの離脱を抑制することが可能な歯間清掃具を提供することができる。 As described above, according to the present invention, it is possible to provide an interdental cleaning tool capable of suppressing the detachment of the cleaning part from the shaft part.

本発明の一実施形態の歯間清掃具の正面図である。1 is a front view of an interdental cleaning tool according to one embodiment of the present invention; FIG. 図１に示される歯間清掃具の平面図である。2 is a plan view of the interdental cleaner shown in FIG. 1; FIG. 図１に示される歯間清掃具の軸部及び突出部の拡大図である。FIG. 2 is an enlarged view of the shaft and protrusions of the interdental cleaner shown in FIG. 1; 図３に示される軸部及び突出部の平面図である。FIG. 4 is a plan view of the shaft and projections shown in FIG. 3; 図１に示されるＶ－Ｖ線での断面図である。2 is a cross-sectional view taken along line VV shown in FIG. 1; FIG.

本発明の一実施形態の歯間清掃具１について、図１～図５を参照しながら説明する。図１に示されるように、歯間清掃具１は、基部１０と、清掃部５０と、を備えている。 An interdental cleaning tool 1 according to one embodiment of the present invention will be described with reference to FIGS. 1 to 5. FIG. As shown in FIG. 1 , the interdental cleaner 1 includes a base 10 and a cleaning section 50 .

基部１０は、ポリプロピレン、ポリエチレン、ＡＢＳ、ポリブチレンテレフタレート、ポリカーボネート、ポリエチレンテレフタレート、ポリスチレン、ポリアセタール等の合成樹脂により形成される。本実施形態では、基部１０は、ガラス繊維を３０重量％含有するポリプロピレンにより形成されている。この基部１０は、軸部２０と、把持部３０と、突出部４０（図３及び図５を参照）と、を有する。 The base 10 is made of synthetic resin such as polypropylene, polyethylene, ABS, polybutylene terephthalate, polycarbonate, polyethylene terephthalate, polystyrene, and polyacetal. In this embodiment, the base 10 is made of polypropylene containing 30% by weight of glass fiber. The base portion 10 has a shaft portion 20, a grip portion 30, and a projecting portion 40 (see FIGS. 3 and 5).

軸部２０は、特定方向（図１の上下方向）に沿って直線状に延びるとともに歯間に挿通されることが可能な形状を有する。軸部２０は、当該軸部２０の先端側から基端側（先端側とは反対側）に向かうにしたがって軸部２０の軸方向（図１の上下方向）と直交する平面での当該軸部２０の断面の外形が次第に大きくなる形状を有する。本実施形態では、軸部２０の前記平面での断面は、円形である。すなわち、本実施形態では、軸部２０は、当該軸部２０の基端部から先端部に向かうにしたがって次第にその外径が小さくなる円柱状に形成されている。なお、軸部２０の前記断面は、楕円形や多角形等であってもよい。 The shaft portion 20 has a shape that extends linearly along a specific direction (vertical direction in FIG. 1) and can be inserted between the teeth. The shaft portion 20 extends from the distal end side of the shaft portion 20 toward the proximal end side (opposite side to the distal end side) on a plane perpendicular to the axial direction of the shaft portion 20 (vertical direction in FIG. 1). The cross-sectional profile of 20 has a gradually increasing shape. In this embodiment, the cross section of the shaft portion 20 on the plane is circular. That is, in the present embodiment, the shaft portion 20 is formed in a columnar shape, the outer diameter of which gradually decreases from the proximal end toward the distal end of the shaft portion 20 . The cross section of the shaft portion 20 may be elliptical, polygonal, or the like.

把持部３０は、軸部２０の軸方向に沿って軸部２０の基端部から離間するように延びており、指で把持されることが可能な形状を有する。把持部３０は、扁平に形成されている。 The grip portion 30 extends along the axial direction of the shaft portion 20 so as to be separated from the base end portion of the shaft portion 20, and has a shape that can be gripped with fingers. The grip portion 30 is formed flat.

突出部４０については、後述する。 The projecting portion 40 will be described later.

清掃部５０は、歯間や歯の側面を清掃するための部位である。清掃部５０は、基部１０の硬度よりも低い硬度を有する樹脂材料により形成されている。具体的に、前記樹脂材料として、スチレン系エラストマーが用いられている。ただし、前記樹脂材料として、シリコン、オレフィン系エラストマー、ポリエステル系エラストマー等が用いられてもよい。この清掃部５０は、清掃部本体６０と、複数のブラシ７０と、を有する。 The cleaning part 50 is a part for cleaning between the teeth and the sides of the teeth. The cleaning part 50 is made of a resin material having hardness lower than that of the base part 10 . Specifically, a styrene-based elastomer is used as the resin material. However, silicon, olefin elastomer, polyester elastomer, or the like may be used as the resin material. The cleaning section 50 has a cleaning section main body 60 and a plurality of brushes 70 .

清掃部本体６０は、軸部２０の少なくとも一部（軸部２０の先端部を含む部位）を被覆する。清掃部本体６０は、軸部２０の先端側から基端側に向かうにしたがって次第にその外形が大きくなる形状を有する。本実施形態では、清掃部本体６０の先端部から基端部までの長さは、１５ｍｍである。 The cleaning portion main body 60 covers at least a portion of the shaft portion 20 (a portion including the tip portion of the shaft portion 20). The cleaning portion main body 60 has a shape whose outer shape gradually increases from the distal end side of the shaft portion 20 toward the proximal end side. In this embodiment, the length from the distal end to the proximal end of the cleaning unit main body 60 is 15 mm.

ここで、突出部４０について説明する。突出部４０は、軸部２０の外周面に設けられている。具体的に、突出部４０は、軸部２０のうち清掃部５０によって被覆される部位である被被覆部２２（図３及び図５を参照）から前記軸方向と交差する方向に突出する形状を有する。突出部４０は、被被覆部２２のうち互いに離間した部位に設けられた複数の突起４２を含む。各突起４２は、被被覆部２２から前記軸方向と直交する方向について外向きに突出する形状を有する。本実施形態では、各突起４２は、円錐状に形成されている。図３に示されるように、複数の突起４２は、被被覆部２２のうち当該被被覆部２２の基端部２２ａと当該基端部２２ａから軸部２０の先端部に向かって前記軸方向についての清掃部本体６０の長さ（本実施形態では１５ｍｍ）の５分の３離間した部位２２ｂとの間の領域である基端領域２２Ａに設けられている。ただし、基端部２２ａから前記部位２２ｂまでの長さは、前記軸方向についての清掃部本体６０の長さの１０分の９以下の任意の範囲に設定されることが可能であり、特に、２分の１に設定されることが好ましい。各突起４２の被被覆部２２からの突出寸法は、基端領域２２Ａの先端側から基端側に向かうにしたがって次第に大きくなる。被被覆部２２のうち特定の突起４２が接続されている部位の直径に対する当該特定の突起４２の被被覆部２２からの突出寸法の割合は、０．１％以上５０％以下に設定されることが好ましく、１％以上３０％以下に設定されることがより好ましく、２％以上２０％以下に設定されることがさらに好ましく、４％以上１０％以下に設定されることが特に好ましい。本実施形態では、図４に示されるように、複数の突起４２は、平面視において、軸部２０の周方向について６０度間隔で６方向に突出するように配置されている。 Now, the projecting portion 40 will be described. The projecting portion 40 is provided on the outer peripheral surface of the shaft portion 20 . Specifically, the protruding portion 40 has a shape protruding in a direction intersecting with the axial direction from the covered portion 22 (see FIGS. 3 and 5 ), which is a portion of the shaft portion 20 covered by the cleaning portion 50 . have. The protruding portion 40 includes a plurality of protrusions 42 provided at mutually spaced apart portions of the covered portion 22 . Each protrusion 42 has a shape protruding outward from the covered portion 22 in a direction perpendicular to the axial direction. In this embodiment, each protrusion 42 is formed in a conical shape. As shown in FIG. 3 , the plurality of projections 42 are formed in the base end portion 22a of the covered portion 22 and extend from the base end portion 22a toward the tip end portion of the shaft portion 20 in the axial direction. is provided in the base end region 22A, which is the region between the portion 22b spaced apart by three-fifths of the length of the cleaning portion main body 60 (15 mm in this embodiment). However, the length from the base end portion 22a to the portion 22b can be set within an arbitrary range of 9/10 or less of the length of the cleaning portion main body 60 in the axial direction. It is preferably set to 1/2. The projection dimension of each projection 42 from the covered portion 22 gradually increases from the distal end side of the proximal region 22A toward the proximal end side. The ratio of the projection dimension of the specific projection 42 from the covered portion 22 to the diameter of the portion of the covered portion 22 to which the specific projection 42 is connected is set to 0.1% or more and 50% or less. is preferably 1% or more and 30% or less, more preferably 2% or more and 20% or less, and particularly preferably 4% or more and 10% or less. In this embodiment, as shown in FIG. 4, the plurality of protrusions 42 are arranged to protrude in six directions at intervals of 60 degrees in the circumferential direction of the shaft portion 20 in a plan view.

複数のブラシ７０は、清掃部本体６０の外周面に設けられている。各ブラシ７０は、それぞれが前記軸方向と交差する方向である交差方向について清掃部本体６０の外周面から外向きに突出する形状を有する。本実施形態では、各ブラシ７０は、円錐状に形成されている。各ブラシ７０は、軸部２０の先端側から基端側に向かうにしたがって次第に清掃部本体６０からの突出寸法が大きくなる形状を有する。図５に示されるように、複数のブラシ７０は、それぞれが各突起４２を被覆する複数の被覆ブラシ７２を含む。つまり、各被覆ブラシ７２は、各突起４２と対応する位置に設けられている。 A plurality of brushes 70 are provided on the outer peripheral surface of the cleaning unit main body 60 . Each brush 70 has a shape protruding outward from the outer peripheral surface of the cleaning section main body 60 in the direction that intersects with the axial direction. In this embodiment, each brush 70 is formed in a conical shape. Each brush 70 has a shape in which the projection dimension from the cleaning section main body 60 gradually increases from the distal end side of the shaft section 20 toward the proximal end side. As shown in FIG. 5, the plurality of brushes 70 includes a plurality of covering brushes 72 each covering each projection 42 . That is, each covered brush 72 is provided at a position corresponding to each protrusion 42 .

以上に説明したように、本実施形態の歯間清掃具１では、当該歯間清掃具１での歯間の清掃中に清掃部５０に対して当該清掃部５０が軸部２０から抜ける（剥がれる）方向の外力が作用した場合であっても、突出部４０がその外力に対する抵抗として作用するので、清掃部５０の軸部２０からの離脱が抑制される。 As described above, in the interdental cleaning tool 1 of the present embodiment, the cleaning part 50 comes off (separates) from the shaft part 20 with respect to the cleaning part 50 while the interdental cleaning tool 1 is cleaning between the teeth. ) direction, the projecting portion 40 acts as a resistance against the external force, so that the separation of the cleaning portion 50 from the shaft portion 20 is suppressed.

また、突出部４０は、被被覆部２２の基端領域２２Ａに設けられているので、より確実に清掃部５０の軸部２０からの離脱が抑制される。 Moreover, since the protruding portion 40 is provided in the base end region 22A of the covered portion 22, separation of the cleaning portion 50 from the shaft portion 20 is suppressed more reliably.

また、突出部４０は、被被覆部２２のうち互いに離間した部位に設けられた複数の突起４２を含み、複数のブラシ７０は、それぞれが各突起４２を被覆する被覆ブラシ７２を含んでいる。このため、複数のブラシ７０のうちの被覆ブラシ７２は、突起４２によって支持されるので、当該被覆ブラシ７２の剛性がそれ以外のブラシ７０の剛性よりも大きくなる。すなわち、基端領域２２Ａに対応する位置に設けられた各ブラシの剛性が相対的に大きくなり、被被覆部２２のうち基端領域２２Ａよりも先端側の領域に対応する位置に設けられた各ブラシの剛性が相対的に小さくなる。よって、清掃部５０の歯間への挿入性が確保され、かつ、被覆ブラシ７２による清掃性が高まる。 Further, the projecting portion 40 includes a plurality of projections 42 provided at mutually separated portions of the covered portion 22 , and the plurality of brushes 70 each includes a covering brush 72 covering each projection 42 . Therefore, the covered brush 72 among the plurality of brushes 70 is supported by the protrusions 42 , so that the rigidity of the covered brush 72 is higher than that of the other brushes 70 . That is, the rigidity of each brush provided at a position corresponding to the base end region 22A is relatively increased, and each brush provided at a position corresponding to the region of the covered portion 22 on the distal side of the base end region 22A is increased. Rigidity of the brush becomes relatively small. Therefore, the insertability of the cleaning part 50 between the teeth is ensured, and the cleaning efficiency of the coated brush 72 is enhanced.

また、各突起４２は、軸部２０の先端側から基端側に向かうにしたがって次第に被被覆部２２からの突出寸法が大きくなる形状を有している。このため、被被覆部２２の基端側に向かうにしたがって被覆ブラシ７２の剛性が大きくなるので、当該被覆ブラシ７２によって有効に歯間ないし歯の側面が清掃される。 Each projection 42 has a shape in which the projection dimension from the coated portion 22 gradually increases from the distal end side of the shaft portion 20 toward the proximal end side. For this reason, since the rigidity of the covering brush 72 increases toward the proximal end side of the covered portion 22, the covering brush 72 effectively cleans between the teeth or the side surfaces of the teeth.

なお、今回開示された上記実施形態は、すべての点で例示であって制限的なものではないと考えられるべきである。本発明の範囲は、上記した実施形態の説明ではなく特許請求の範囲によって示され、さらに特許請求の範囲と均等の意味および範囲内でのすべての変更が含まれる。 It should be noted that the above-described embodiments disclosed this time should be considered as examples and not restrictive in all respects. The scope of the present invention is indicated by the scope of the claims rather than the description of the above-described embodiments, and includes all modifications within the meaning and scope equivalent to the scope of the claims.

例えば、突出部４０は、単一の突起で構成されてもよい。この場合、前記突起は、被被覆部２２の周方向に沿って延びる形状に形成されてもよい。 For example, protrusion 40 may consist of a single protrusion. In this case, the projection may be formed in a shape extending along the circumferential direction of the covered portion 22 .

また、複数の突起４２は、被被覆部２２の全域（当該被被覆部２２の基端部２２ａと軸部２０の先端部との間の領域）にわたって設けられてもよい。 Also, the plurality of protrusions 42 may be provided over the entire area of the covered portion 22 (the area between the base end portion 22a of the covered portion 22 and the distal end portion of the shaft portion 20).

また、各突起４２は、各ブラシ７０に対応しない位置（各ブラシ７０から離間した位置）に設けられてもよい。 Further, each protrusion 42 may be provided at a position not corresponding to each brush 70 (a position spaced apart from each brush 70).

また、平面視における複数の突起４２の配置及び複数の被覆ブラシ７２の配置は、軸部２０の周方向について６０度間隔で６方向に突出するものに限られない。 Further, the arrangement of the plurality of protrusions 42 and the arrangement of the plurality of covering brushes 72 in a plan view are not limited to protruding in six directions at intervals of 60 degrees in the circumferential direction of the shaft portion 20 .

また、各突起４２及び各ブラシ７０は、多角錐状に形成されてもよく、あるいは、板状（ヘラ状）に形成されてもよい。 Further, each protrusion 42 and each brush 70 may be formed in a polygonal pyramid shape, or may be formed in a plate shape (spatula shape).

また、清掃部５０は、前記樹脂材料と強化材（ガラス繊維やタルク等）とを含む複合材料により形成されてもよい。このようにすれば、清掃部５０がエラストマーのみからなる場合に比べて各ブラシ７０の剛性が高まるので、歯の側面が有効に清掃される。この場合、前記複合材料における前記強化材の含有量は、３重量％以上５０重量％以下であることが好ましく、５重量％以上３５重量％以下であることがより好ましい。 Moreover, the cleaning part 50 may be formed of a composite material containing the resin material and a reinforcing material (glass fiber, talc, etc.). By doing so, the rigidity of each brush 70 is increased as compared with the case where the cleaning portion 50 is made of only elastomer, so that the side surfaces of the teeth are effectively cleaned. In this case, the content of the reinforcing material in the composite material is preferably 3% by weight or more and 50% by weight or less, more preferably 5% by weight or more and 35% by weight or less.

１ 歯間清掃具
１０ 基部
２０ 軸部
２２ 被被覆部
２２ａ 基端部
２２Ａ 基端領域
３０ 把持部
４０ 突出部
４２ 突起
５０ 清掃部
６０ 清掃部本体
７０ ブラシ
７２ 被覆ブラシ 1 Interdental Cleaning Tool 10 Base 20 Shaft 22 Covered Part 22a Base End 22A Base End Region 30 Grip Part 40 Protruding Part 42 Protrusion 50 Cleaning Part 60 Cleaning Part Main Body 70 Brush 72 Covered Brush

Claims (3)

歯間に挿通されることが可能な形状を有する軸部を含む基部と、
前記軸部の少なくとも一部を被覆するとともに歯間を清掃可能な清掃部と、を備え、
前記基部は、前記軸部のうち前記清掃部によって被覆される部位である被被覆部から前記軸部と交差する方向に突出して前記清掃部を係止している突出部をさらに有し、
前記清掃部は、前記被被覆部を被覆する清掃部本体と、それぞれが前記清掃部本体の外周面から外向きに突出する形状を有する複数のブラシと、を有し、
前記突出部は、前記被被覆部のうち当該被被覆部の基端部と当該基端部から前記軸部の先端部に向かって前記軸部の軸方向についての前記清掃部の長さの１０分の９離間した部位との間の領域である基端領域においてのみ前記軸部の前記軸方向に互いに離間して配列された複数の突起を含んでおり、
前記複数の突起それぞれは、前記基端領域にあるブラシによって被覆されて、当該ブラシの剛性を高めている、歯間清掃具。 a base including a shaft having a shape that can be inserted between the teeth;
a cleaning part that covers at least a part of the shaft and is capable of cleaning between teeth;
the base further has a protruding portion that protrudes in a direction that intersects with the shaft from a covered portion that is a portion of the shaft that is covered by the cleaning portion and that locks the cleaning portion;
The cleaning unit has a cleaning unit main body that covers the covered portion, and a plurality of brushes each having a shape that protrudes outward from the outer peripheral surface of the cleaning unit main body,
The protruding portion has a length of 10 of the length of the cleaning portion in the axial direction of the shaft portion from the base end portion of the covered portion to the tip portion of the shaft portion from the base end portion to the tip portion of the shaft portion. including a plurality of projections spaced apart from each other in the axial direction of the shaft only in a proximal region that is the region between the nine spaced apart portions of the shank;
The interdental cleaner , wherein each of the plurality of projections is covered by a brush at the proximal region to increase the rigidity of the brush . 請求項１に記載の歯間清掃具において、
前記複数の突起の突出寸法は、前記軸部の先端側から基端側に向かうにしたがって次第に大きくなっている、歯間清掃具。 The interdental cleaning tool according to claim 1 ,
The interdental cleaning tool, wherein the projecting dimensions of the plurality of projections gradually increase from the distal end side toward the proximal end side of the shaft portion. 請求項１又は２に記載の歯間清掃具において、
前記清掃部は、エラストマーと強化材とを含む複合材料からなる、歯間清掃具。 The interdental cleaning tool according to claim 1 or 2 ,
An interdental cleaning tool, wherein the cleaning portion is made of a composite material including an elastomer and a reinforcing material.
JP2018087031A 2018-04-27 2018-04-27 interdental cleaner Active JP7212457B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2018087031A JP7212457B2 (en) 2018-04-27 2018-04-27 interdental cleaner
US17/050,525 US11612235B2 (en) 2018-04-27 2019-04-26 Interdental cleaning tool
PCT/JP2019/017966 WO2019208780A1 (en) 2018-04-27 2019-04-26 Interdental cleaning tool
EP19791669.5A EP3785663A4 (en) 2018-04-27 2019-04-26 Interdental cleaning tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2018087031A JP7212457B2 (en) 2018-04-27 2018-04-27 interdental cleaner

Publications (2)

Publication Number Publication Date
JP2019188014A JP2019188014A (en) 2019-10-31
JP7212457B2 true JP7212457B2 (en) 2023-01-25

Family

ID=68294119

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2018087031A Active JP7212457B2 (en) 2018-04-27 2018-04-27 interdental cleaner

Country Status (4)

Country Link
US (1) US11612235B2 (en)
EP (1) EP3785663A4 (en)
JP (1) JP7212457B2 (en)
WO (1) WO2019208780A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7191546B2 (en) * 2018-04-27 2022-12-19 小林製薬株式会社 interdental cleaner
JP7292031B2 (en) * 2018-12-28 2023-06-16 ライオン株式会社 interdental brush

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5775346A (en) 1996-02-14 1998-07-07 Advanced Implant Technologies Inc. Interproximal dental appliances
JP2004209242A (en) 2002-12-20 2004-07-29 Kao Corp Interdental cleaner and forming method thereof
WO2014023424A1 (en) 2012-08-09 2014-02-13 Interbros Gmbh Interdental cleaner
JP2016521159A (en) 2013-04-11 2016-07-21 テぺ ムニジェンプロダクター アーベーＴｅＰｅ Ｍｕｎｈｙｇｉｅｎｐｒｏｄｕｋｔｅｒ ＡＢ Tooth cleaning tools
JP2017042493A (en) 2015-08-28 2017-03-02 小林製薬株式会社 Base part, interdental cleaning tool and production method of interdental cleaning tool
JP2017506963A (en) 2014-03-06 2017-03-16 テぺ ムニジェンプロダクター アーベーＴｅＰｅ Ｍｕｎｈｙｇｉｅｎｐｒｏｄｕｋｔｅｒ ＡＢ Interdental cleaner
US20180193119A1 (en) 2016-07-14 2018-07-12 Sunstar Suisse S.A. Interdental cleaner

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3775848A (en) * 1972-11-03 1973-12-04 E Barnett Periodontal and dental cleanser and periodontal stimulator
DE19932376A1 (en) * 1999-07-13 2001-01-18 Coronet Werke Gmbh Bristle for toothbrushes and toothbrush with such bristles
US7121937B2 (en) * 2003-03-17 2006-10-17 3M Innovative Properties Company Abrasive brush elements and segments
US20100015567A1 (en) * 2008-07-18 2010-01-21 Jean-Jacques Elbaz Dental Hygiene Tool
DE112013002612B4 (en) 2012-05-24 2016-09-22 Sunstar Suisse S.A. Method for producing an interdental cleaning tool
US10299577B2 (en) * 2012-07-02 2019-05-28 Trisa Holding Ag Method for producing brushes, in particular interdental brushes, and brush, in particular interdental brush, and product group comprising a plurality of brushes
US20140166043A1 (en) * 2012-12-14 2014-06-19 Ranir, Llc Interproximal cleaning tool and method of manufacture
EP3219291A4 (en) * 2014-11-11 2018-07-18 Sunstar Inc. Interdental cleaning tool
DE102016007658A1 (en) * 2016-06-23 2017-12-28 Interbros Gmbh Interdental cleaners

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5775346A (en) 1996-02-14 1998-07-07 Advanced Implant Technologies Inc. Interproximal dental appliances
JP2004209242A (en) 2002-12-20 2004-07-29 Kao Corp Interdental cleaner and forming method thereof
WO2014023424A1 (en) 2012-08-09 2014-02-13 Interbros Gmbh Interdental cleaner
JP2016521159A (en) 2013-04-11 2016-07-21 テぺ ムニジェンプロダクター アーベーＴｅＰｅ Ｍｕｎｈｙｇｉｅｎｐｒｏｄｕｋｔｅｒ ＡＢ Tooth cleaning tools
JP2017506963A (en) 2014-03-06 2017-03-16 テぺ ムニジェンプロダクター アーベーＴｅＰｅ Ｍｕｎｈｙｇｉｅｎｐｒｏｄｕｋｔｅｒ ＡＢ Interdental cleaner
JP2017042493A (en) 2015-08-28 2017-03-02 小林製薬株式会社 Base part, interdental cleaning tool and production method of interdental cleaning tool
US20180193119A1 (en) 2016-07-14 2018-07-12 Sunstar Suisse S.A. Interdental cleaner

Also Published As

Publication number Publication date
EP3785663A1 (en) 2021-03-03
EP3785663A4 (en) 2021-06-16
JP2019188014A (en) 2019-10-31
WO2019208780A1 (en) 2019-10-31
US20210251373A1 (en) 2021-08-19
US11612235B2 (en) 2023-03-28

Similar Documents

Publication Publication Date Title
JP7212457B2 (en) interdental cleaner
JP6721342B2 (en) Interdental brush
WO2019208784A1 (en) Interdental cleaning tool
WO2019208779A1 (en) Interdental cleaning tool
WO2016167191A1 (en) Interdental brush
JP6433065B2 (en) Interdental brush
JP7128021B2 (en) interdental cleaner
JP7028710B2 (en) Intertooth cleaning tool
US20210186201A1 (en) Interdental cleaning tool
JP7191545B2 (en) interdental cleaner
WO2020003798A1 (en) Interdental cleaning tool
JP6423050B1 (en) Interdental cleaning tool
JP7191546B2 (en) interdental cleaner
WO2018088512A1 (en) Toothbrush
JP7252715B2 (en) interdental cleaner
JP2018140088A (en) Interdental cleaner
JP7388922B2 (en) Interdental cleaning tool
WO2022004576A1 (en) Interdental cleaning tool
WO2020003797A1 (en) Interdental cleaning tool
JP5540385B2 (en) Tongue cleaning tool
JP2021106721A (en) Interdental cleaner
JP2021106724A (en) Interdental cleaning tool

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20210302

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20220308

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20220418

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20220830

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20221024

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20230110

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20230113

R150 Certificate of patent or registration of utility model

Ref document number: 7212457

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150